"Water in the oil, water in the tranny fluid, if it's a rear wheel drive it will be in the rear end also because it'll submerge it and suck it in the top half side," said Chuck Zachariae.

Chuck Zachariae at Firestone Auto Care says this car is one of the worst cases. It was stuck in an intersection when it was overtaken by water.

"For sure it's going to have to have the new computer and new battery, we start there. All the fluids will have to be changed and probably clean out the gas tank and clean out the lines for the fuel," said Chuck Zachariae.

Not all of the cars are that bad, but Zachariae says if you drove through any water, it's important to get your oil changed. That gives you a good idea if there could be bigger problems.

Zachariae says there's one sure way to avoid water in your engine -- stay away from anything deeper than your tire.

"If you can't see the curb, don't run into it," said Chuck Zachariae.

Zachariae says if you think your engine may have suffered serious water damage do not drive it or turn on the engine. That will cause the problem to become worse.